Date   : Wed, 08 Oct 2003 08:14:14 +0100
From   : Chris Johns <chris.johns@...>
Subject: Re: XFER v4 problem

> The load and exec addresses are unusual - &8000 is the start of Sideways
> ROM space, and &D9CD is the warm start entry point on the BBC B OS 1.20.
> So if one tried to execute C.Pascal (*RUN C.Pascal) it would load the
> file over the currently selected ROM (which does nothing) then reset the
> machine.  

With certain Sideways RAM systems, that would load the ROM image into
the Sideways RAM, then reset the machine (which would initialize the ROM).
If the Sideways RAM had a high(er) priority slot and the ROM was a
language then it would be entered on reset - so *RUNnig the ROM image would
effectively start that ROM.

Cheers

Chris
-- 
 <chris.johns@...             >